Statement Of Financial Position [Abstract]
| Concept |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Property, plant and equipment | — |
185,116,000
EUR
|
— | — | — | — | — | — | — |
184,905,000
EUR
|
— | — | — | — | — |
| Intangible assets other than goodwill | — |
2,429,000
EUR
|
— | — | — | — | — | — | — |
3,100,000
EUR
|
— | — | — | — | — |
| Deferred tax assets | — |
8,332,000
EUR
|
— | — | — | — | — | — | — |
18,845,000
EUR
|
— | — | — | — | — |
| Cash and cash equivalents | — |
165,474,000
EUR
|
— | — | — | — | — | — | — |
116,967,000
EUR
|
— | — | — | — |
175,299,000
EUR
|
| Assets | — |
638,006,000
EUR
|
— | — | — | — | — | — | — |
594,045,000
EUR
|
— | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — |
430,000
EUR
|
— | — | — | — | — | — | — |
430,000
EUR
|
— | — | — | — | — |
| Retained earnings | — |
443,414,000
EUR
|
— | — | — | — | — | — | — |
482,826,000
EUR
|
— | — | — | — | — |
| Equity |
539,594,000
EUR
|
107,256,000
EUR
|
10,646,000
EUR
|
430,000
EUR
|
443,414,000
EUR
|
430,000
EUR
|
482,826,000
EUR
|
10,422,000
EUR
|
539,630,000
EUR
|
67,656,000
EUR
|
1,245,000
EUR
|
21,891,000
EUR
|
528,289,000
EUR
|
62,000
EUR
|
505,091,000
EUR
|
| Liabilities [abstract] | |||||||||||||||
| Deferred tax liabilities | — |
648,000
EUR
|
— | — | — | — | — | — | — |
3,635,000
EUR
|
— | — | — | — | — |
| Equity and liabilities | — |
638,006,000
EUR
|
— | — | — | — | — | — | — |
594,045,000
EUR
|
— | — | — | — | — |